Mandel: software for real and complex dynamics

Mandel is an interactive program for drawing the Mandelbrot set and Julia sets, and for illustrating and researching their mathematical properties. It is available on Linux, Windows, and Mac with a graphical user interface based on the c++ toolkit Qt by Qt Group. Features include: The latest release is Mandel 5.18 of May 28, 2023. The source code is available under the GNU General Public Licence. Compile it yourself on Linux, Windows, or Mac after installing Qt 4-6. For your convenience, an older Windows executable is offered in addition.
Download the source code (0.5 MB) or the Windows exe (5.7 MB).
Note: For polynomial spiders and twists, you need an old version in addition.
There is an outdated executable for Mac as well (7.6 MB, Mandel 5.10, no matings).

See Juliette 2.0 here, a JavaScript web application providing external rays, renormalization, asymptotic and local similarity. The Java applet Juliette 1.0 is no longer supported.

Other sites with programs on complex dynamics or fractals:
Arnaud Chéritat, Hiroyuki Inou, Chris King, Curt McMullen, Mitsuhiro Shishikura, Xaos, Fractint.

Just for fun ... a PostScript program for computing M. You may change parameters by editing the source code. Download mc.eps (1.4 kb).

The DOS-program logistic.exe deals with the real iteration of z2 + c, which is conjugate to the standard logistic map. It provides features like drawing q-curves, finding hyperbolic intervals or periodic points, cobweb graphics.
Download logistic.exe 2.0 of July 30, 1998. Preliminary manual